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A&P Lesson 3

QuestionAnswer
What does the plasma membrane do? Separates cell contents to extracellular fliid
What does the cytoplasm do? Material between cell membrane and nuclear membrane
What are the 2 subdivisions of cytoplasm? Cytosol and organelles
Name 5 organelles Cytoskeleton, microvilli, centrioles, cilia, and ribosomes
What are the 3 components of the plasma membrane? glycocalyx, integral proteins, peripheral proteins
What are the functions of glycocalyx? Bind to extracellular surface,lubrication of cell surface
What are the functions of integral proteins? Can't be removed w/o damaging cell, transport water and solutes, often span entire cell
What are the functions of peripheral proteins? Attached to cell membrane, but removable
What are the basics of active transport? Require ATP, vesicular transport(materials move across cell membranes in small membranous sacs)
What are the basics of passive transport? Don't require ATP, uses diffusion and carrier mediated transport
What is an example of diffusion? Putting sugar in water, slowly dissolves and spreads throughout the water.
What are the 5 factors that influence diffusion rates? distance, molecule size(both inversely related), temp, gradient
Created by: 1553310014
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